CN208513587U - A kind of big specification straight bevel gear finish forge molding machine - Google Patents

A kind of big specification straight bevel gear finish forge molding machine Download PDF

Info

Publication number
CN208513587U
CN208513587U CN201820546563.4U CN201820546563U CN208513587U CN 208513587 U CN208513587 U CN 208513587U CN 201820546563 U CN201820546563 U CN 201820546563U CN 208513587 U CN208513587 U CN 208513587U
Authority
CN
China
Prior art keywords
die
warm forging
upper mold
lower die
forging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201820546563.4U
Other languages
Chinese (zh)
Inventor
倪俊芳
陈云
王德力
枚杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou University
Original Assignee
Suzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou University filed Critical Suzhou University
Priority to CN201820546563.4U priority Critical patent/CN208513587U/en
Application granted granted Critical
Publication of CN208513587U publication Critical patent/CN208513587U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of big specification straight bevel gear finish forge molding machines, including upper die holder, lower die holder and the same straight bevel gear set of molds being placed between upper die holder and lower die holder, the same straight bevel gear set of molds includes that the flat mould used, warm forging shaping dies, warm forging shaping mould and cold forging finishing mold are respectively corresponded in gear difference process.The former of the utility model is suitable for the processing of big specification straight bevel gear, the difference of Forming Resistance when being shaped by gear different phase, by forming process again it is original it is once-forming on the basis of be divided into warm forging and cold forging and shape twice;Since Warm Forging Process different phase Forming Resistance changes greatly; in order to protect mold; Warm Forging Process is divided into and is forged and pressed three times; after improving processing technology; mold is improved; one set of die is changed to four molds, former is improved according to the motion conditions of mold different piece when processing after die improvement.

Description

A kind of big specification straight bevel gear finish forge molding machine
Technical field
The utility model relates to a kind of big specification straight bevel gear finish forge molding machines, belong to the technology manufacture neck of gear Domain.
Background technique
Gear precision forging technology refers to that gear tooth directly obtains complete tooth form by finish forge by also expecting, and the flank of tooth is not required to cut Processing, or only need to finish i.e. workable Gear Manufacturing Technology a little.
For a long time, straight bevel gear uses metal cutting mode, technology maturation, process, but the root portion of gear Metallic fiber is cut off, so that the strength of gear teeth weakens, and machining low efficiency, at high cost, is not suitable for producing in enormous quantities.And Although the direct forging and molding method of tradition improves processing efficiency, reduce waste of material, but Product Precision is low, and mold is ground Damage is serious.Compared with traditional cutting technology, gear precision forging technique can improve gear tissue, improve mechanical property;It improves Stock utilization and production efficiency reduce production cost;Flank profil deformation when heat treatment is reduced, the wearability and engagement of tooth are improved When stationarity, improve service life.
A common forging process cannot shape drag according to gear different phase and carry out segmental machining, mold is caused to grind Cannot be to the gear finishing after forming when damaging seriously, and once forging and pressing, precision is not high, has overlap after causing gear to forge and press, and needs Increase by one of machining processes and improve precision, to reduce enterprises production efficiency.
For machining production efficiency, low, waste of material cannot seriously and during an excellent suitability for press forming go deburring and mould Has the problem of serious wear, it is necessary to mold and processing technology are improved, to avoid brought by machining and an excellent suitability for press forming Problem improves and improves the forming effect and quality of mold, reduces production cost, improves production efficiency, improves the forming of mold Technique.
Utility model content
The goal of the invention of the utility model is to provide a kind of big specification straight bevel gear finish forge molding machine, to avoid machine plus Problem brought by work and an excellent suitability for press forming improves and improves the forming effect and quality of mold, reduces production cost, improves Production efficiency improves the forming technology of mold.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of big specification straight bevel gear essence Forging molding device, including upper die holder, lower die holder and the same straight bevel gear mold being placed between upper die holder and lower die holder Group,
The same straight bevel gear set of molds include respectively corresponded in gear difference process the flat mould used, Warm forging shaping dies, warm forging shaping mould and cold forging finishing mold,
The flat mould includes flat-die punch-pin and flat-die cavity plate, and the flat-die punch-pin includes the first flat-die upper mold, second Flat-die upper mold, the flat-die cavity plate include the first flat-die lower die, the second flat-die lower die,
The first flat-die upper mold is cylinder punch-pin, and the second flat-die upper mold is cylinder punch-pin, on first flat-die Mould clamping is set in the second flat-die upper mold,
The first flat-die lower die is solid cylinder, and the second flat-die lower die is cylinder, the first flat-die lower die It is plugged in the second flat-die lower die;
The warm forging shaping dies includes warm forging forming terrace die and warm forging female die for forming, and the warm forging forming terrace die includes same The first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the 4th warm forging of axis setting shape upper mold, The warm forging female die for forming includes the first warm forging forming lower die, the second warm forging forming lower die and third the warm forging forming of coaxial arrangement Lower die,
The first warm forging forming upper mold is cylinder punch-pin, and diameter is equal to pinion mounting holes internal diameter at the model of lower end, The first warm forging forming upper mold clamping is set in the second warm forging forming upper mold,
The second warm forging forming upper mold is cylinder cavity plate, is equipped with tooth die, the tooth proportions of tooth die at external port For half-formed size, pinion mounting holes mould is equipped at inner port, the second warm forging forming upper mold clamping is set to third warm forging It shapes in upper mold,
The third warm forging forming upper mold is cylinder, and the second warm forging forming upper mold clamping is set in third warm forging forming In mould, the third warm forging forming upper mold clamping is set in the 4th warm forging forming upper mold,
The 4th warm forging forming upper mold is cylinder,
The first warm forging forming lower die is solid cylinder, is equipped with protrusion part, the protrusion part among end face thereon Diameter is equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative ground shape model, institute The first warm forging forming lower die is stated to be inserted in the second warm forging forming lower die,
The second warm forging forming lower die is cylinder, and there is chamfering in inner wall upper end endface, under the second warm forging forming Mould is inserted in third warm forging forming lower die,
The third warm forging forming lower die is cylinder;
The warm forging shaping mould includes warm forging shaping terrace die and warm forging correcting die, and the warm forging shaping terrace die includes same The first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and the 4th warm forging shaping upper mold of axis setting, The warm forging correcting die includes the first warm forging shaping lower die, the second warm forging shaping lower die and the third warm forging shaping of coaxial arrangement Lower die,
The first warm forging shaping upper mold is cylinder punch-pin, and the diameter at the model of end is equal to pinion mounting holes internal diameter, The first warm forging shaping upper mold is inserted in the second warm forging shaping upper mold,
The second warm forging shaping upper mold is cylinder cavity plate, and model end is equipped with gear non-operative end mould, second temperature The clamping of shaping upper mold is forged to be set in third warm forging shaping upper mold,
The third warm forging shaping upper mold is cylinder, when model end and the second warm forging shaping upper mold model end work, two Person collectively forms gear non-operative end surface model, and the third warm forging shaping upper mold clamping is set in the 4th warm forging shaping upper mold,
The 4th warm forging shaping upper mold is cylinder, is moved synchronously during forging and stamping with third warm forging shaping upper mold, is protected Third warm forging shaping upper mold,
The first warm forging shaping lower die is solid cylinder, is equipped with the first protrusion part among end face thereon, protrudes part Diameter be equal to the straight bevel gear diameter of axle to be processed, first protrusion part periphery be additionally provided with the second protrusion part, second is convex Part is straight bevel gear inoperative ground shape model out,
The second warm forging shaping lower die is cylinder, and internal diameter is equal to the first warm forging shaping upper mold outer diameter, and the second warm forging is whole The size at the model end of shape lower die is identical as the theoretical size in working gear face to be processed, and the first warm forging shaping lower die is set to In the second warm forging shaping lower die,
The third warm forging shaping lower die is cylinder, and internal diameter is equal to the second warm forging shaping lower die outer diameter, second temperature Shaping lower die is forged to be set in third warm forging shaping lower die;
The cold forging finishing mold includes cold forging finishing punch-pin and cold forging finishing cavity plate, and the cold forging finishing punch-pin includes same The the first cold forging finishing upper mold and the second cold forging finishing upper mold of axis setting, the cold forging finishing cavity plate include the first of coaxial arrangement Cold forging finishing lower die, the second cold forging finishing lower die and third cold forging finishing lower die,
The first cold forging finishing upper mold is cylinder punch-pin, is equipped with gear non-operative end mould at the model end of end,
The second cold forging finishing upper mold is cylinder, and the first cold forging finishing upper mold clamping is set in the second cold forging finishing It in mould, is moved synchronously during forging and stamping with the first cold forging finishing upper mold, protects the first cold forging finishing upper mold,
The first cold forging finishing lower die is cylinder cavity plate, and protrusion part, protrusion are equipped among the upper surface of model end Diameter is divided to be equal to the gear diameter of axle to be processed, model end upper surface periphery is additionally provided with remaining protrusion part, remaining described protrusion part For straight bevel gear inoperative ground shape model,
Second cold forging finishing lower die is cylinder, internal diameter of the internal diameter less than the first cold forging finishing lower die, second cold forging Finishing lower die outer diameter is equal with the first cold forging finishing outer diameter, and is equal to third cold forging die finish internal diameter,
The third cold forging finishing lower die is cylinder, and internal diameter and the first, second cold forging die finish outer diameter are equal, described first Cold forging finishing lower die is set to above the second cold forging finishing lower die, and the first, second cold forging die finish is set to third cold forging finishing In lower die.
Preferably, the upper die holder includes cope plate and the upper mold pressure block that is co-axially located in cope plate.
Preferably, the lower die holder includes big pressure block, lower die pressure block, floating template, compression ring, spring, pressure of floating Power block, lower template, workbench backing plate, the big pressure block, which is coaxially clamped, to be set in lower template, and the big pressure block is lower molding Power block and compression ring support section are coaxially fixed below lower die pressure block and compression ring, and both limitations are described to up and down motion Compression ring is set on lower die pressure block, and the lower end of the compression ring is circumferentially with step, described for fixing big pressure block Floating template is set to above compression ring, and the floating template is connect with compression ring by slide bar, is arranged with spring on the slide bar, Effect is accumulation of energy and buffering, and lower die is set back and set when upper and lower mould separates by floating template energy storage during forging and stamping, The floating pressure block is coaxially arranged with floating template, and the outer diameter of the floating pressure block is equal to the interior of floating template installation place Diameter, the outer diameter of floating pressure block are greater than the internal diameter of floating template and are less than the outer diameter of floating template, and the height of floating pressure block is small In the height of floating template, lower die pressure block be the first flat-die lower die, the first warm forging forming lower die, the first warm forging shaping lower die, And first cold forging finishing lower die support section, limit corresponding lower die in different forging processes and move downward, the spring For pressure rings accumulation of energy and buffer portion, compression ring is installed on the slide bar that floating template connects, storing other lower dies (except first Flat-die lower die, the first warm forging forming lower die, the first warm forging shaping lower die and the first cold forging finishing lower die other lower dies) pass The energy led.
Preferably, it is additionally provided with mold protecting device, the mold protecting device includes Upper Die-sleeve, lower die-sleeve and upper die-cushion Plate, the fixed top with upper die holder of the upper die plate, the fixed lower section with upper die holder of the cope plate, the lower die-sleeve are fixed On the lower die seat, the upper and lower die sleeve is cylinder, and in different process, the Upper Die-sleeve is coaxially fixed at together The outermost of corresponding punch-pin in one straight bevel gear set of molds, the lower die-sleeve are coaxially fixed at same straight bevel gear The outermost of corresponding cavity plate in set of molds.
Preferably, the upper and lower material returned pin is the hollow cylinder among upper and lower molding pressure block, and material returned pin is in warm forging It in cold forging processes, has some scrap and blocks into upper and lower mould, which can be used to clear up the foreign matters such as scrap.
Preferably, the guide post is cylinder director element, which is connected with relocatable module, it is ensured that relocatable module is perpendicular Histogram is to movement.
The invention also discloses a kind of big specification straight bevel gear study on precision forging technology, using flat mould by raw material Jumping-up;Tooth form is processed using warm forging shaping dies;Tooth form is corrected using warm forging shaping mould;It goes to fly using cold forging finishing mold Side, finishing tooth form,
Specifically comprise the following steps:
(1), it will process raw material and be heated to 850 DEG C in electric furnace;
(2), flat mould is placed in precision forging equipment, according to required straight bevel gear size adjusting forging press Tonnage by raw material on flat-die jumping-up to required thickness;
(3), in the state that forging press is opened, upper and lower mold is heated to 350 DEG C;
(4), warm forging shaping dies is placed in precision forging equipment, warm forging forming terrace die moves down, when warm forging forming is convex When mould, the contact of warm forging female die for forming, the second warm forging forming lower die is contacted with third warm forging forming upper mold, while third warm forging shapes Lower die is contacted with the 4th warm forging forming upper mold, and continues to move downward, and according to straight bevel gear size, punching press tonnage is arranged, Obtain the gear of roughing tooth form;
(5), warm forging shaping mould is placed in precision forging equipment, warm forging shaping terrace die moves down, when warm forging shaping is convex When mould, the contact of warm forging correcting die, the second warm forging shaping lower die is contacted with third warm forging shaping upper mold, while third warm forging shaping Lower die is contacted with the 4th warm forging shaping upper mold, and continues to move downward, and according to straight bevel gear size, punching press tonnage is arranged, Obtain the gear for correcting tooth form.
(6), the gear after warm forging is placed on press machine, intermediate shaft hole is reopened, it is true according to the straight bevel gear diameter of axle Determine press machine and rushes shaft diameter;
(7), step (6) institute workpieces processing is first cooled to room temperature, then carries out Shot Blasting, later saponification process;
(7), cold forging finishing mold is placed in precision forging equipment, by step (7), treated that gear punch-pin moves down It is closed with cavity plate, completes cold forging finishing;
(8), by after the processed carburizing heat treatment of step (7), processing is completed.
Preferably, the flat mould is made of flat-die punch-pin and flat-die cavity plate, according to institute's machining straight bevel gear by adopting ruler It is very little, it adjusts forging press and forges and presses tonnage, by 850 DEG C of raw material jumping-ups to specified size.
Preferably, the warm forging shaping dies, is made of warm forging forming terrace die and warm forging female die for forming, the first warm forging forming Mode diameters are equal to straight bevel gear shaft hole diameter, and tooth die is that the second warm forging shapes upper mold;
Preferably, the warm forging shaping mould, is made of warm forging shaping terrace die and warm forging correcting die, the first warm forging shaping Mode diameter is equal to straight bevel gear shaft hole diameter under upper mold and the first warm forging shaping, and tooth die is the second warm forging shaping lower die;
Preferably, the cold forging finishing mold is made of cold forging finishing punch-pin and cold forging finishing cavity plate, flute profile in lower die, It is gear non-operative end mould at model end, internal diameter is equal to corresponding model gear non-operative end axis hole outer diameter, and model end is gear work When making, the size of gear non-working surface, the size carries out essence to semi-finished product gear non-working surface size cooling after warm forging finishing It is whole.The non-model end of outer diameter is greater than model end, forms ladder platform, and non-model end and model end outer diameter are equal in the second cold forging finishing Mould corresponds to internal diameter, and the two is coupled.Second cold forging finishing upper mold is cylinder, and internal diameter is equal to third cold forging finishing upper mold outer diameter, Height is consistent with third cold forging finishing upper mold, moves synchronously during forging and stamping with third cold forging finishing upper mold, protects third cold forging Finishing upper mold.First cold forging finishing lower die is cylinder cavity plate, and internal diameter is equal to mounting hole outer diameter in working gear requirement.The mould mould Working face correspondingly-sized when type end is working gear, the size are to carry out size finishing to the semi-finished product gear of warm forging shaping.On End face intermediate ledge divides diameter to be equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative Ground shape model.Second cold forging finishing lower die is cylinder, and internal diameter is slightly less than the first cold forging finishing lower die outer diameter, the mould outer diameter It is identical as the first cold forging finishing outer diameter, and it is equal to third cold forging die finish internal diameter.Third cold forging finishing lower die be cylinder, internal diameter and The one the second cold forging die finish outer diameters are equal.There is a ladder platform in outside, and when installation cooperates with corresponding component.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
The former of the utility model is suitable for the processing of big specification straight bevel gear, is shaped by gear different phase When Forming Resistance difference, by forming process again it is original it is once-forming on the basis of be divided into warm forging and cold forging and shape twice;Due to Warm Forging Process different phase Forming Resistance changes greatly, and in order to protect mold, Warm Forging Process is divided into and is forged and pressed three times, to processing work After skill is improved, mold is improved, one set of die is changed to four molds, after die improvement not according to mold when processing Motion conditions with part improve former.Cooperate corresponding mold and technique effective the improvement of former above Improve in original processing method that burn failure is serious, has the problem of overlap.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the big specification straight bevel gear finish forge molding machine of the utility model embodiment one.
Fig. 2 is the flat mould figure of the big specification straight bevel gear finish forge molding machine of the utility model embodiment one.
Fig. 3 is a kind of warm forging finishing die of big specification straight bevel gear finish forge molding machine of the utility model embodiment one Tool figure.
Fig. 4 is a kind of warm forging sizing die of big specification straight bevel gear finish forge molding machine of the utility model embodiment one Tool figure.
Fig. 5 is a kind of cold forging die finish of big specification straight bevel gear finish forge molding machine of the utility model embodiment one Tool figure.
Wherein: 1, big pressure block;2, lower die pressure block;3, spring;4, floating pressure block;5, lower die 1;6, guide post;7, under Mould 2;8, lower die 3;9, guide sleeve;10, upper mold 2;11, upper mold 3;12, upper mold 4;13, big nut;14, T-bolt;15, Upper Die-sleeve; 16, cope plate;17, upper mold pressure block;18, upper die plate;19, upper material returned pin;20, upper mold 1;21, model cavity;22, small guide post; 23, lower die-sleeve;24, general cylindrical pin A type;25, small guide post;26, floating template;27, gasket;28, guide sleeve;29, through type pressure Priming cup;30, compression ring;31, lower material returned pin;32, lower template;33, workbench backing plate;201, the first flat-die upper mold;202, Two flat-die upper molds;203, the first flat-die lower die;204, the second flat-die lower die;301, the first warm forging shapes upper mold;302, the second temperature It is swaged into shape upper mold;303, third warm forging shapes upper mold;304, the 4th warm forging shapes upper mold;305, the first warm forging forming lower die; 306, the second warm forging forming lower die;307, third warm forging forming lower die;401, the first warm forging shaping upper mold;402, the second warm forging is whole Shape upper mold;403, third warm forging shaping upper mold;404, the 4th warm forging shaping upper mold;405, the first warm forging shaping lower die;406, Two warm forging shaping lower dies;407, third warm forging shaping lower die;501, the first cold forging finishing upper mold;502, in the second cold forging finishing Mould;503, the first cold forging finishing lower die;504, the second cold forging finishing lower die;505, third cold forging finishing lower die.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment one: a kind of shown in Figure 1, big specification straight bevel gear finish forge molding machine, including upper die holder, lower die Seat and the same straight bevel gear set of molds being placed between upper die holder and lower die holder,
The same straight bevel gear set of molds include respectively corresponded in gear difference process the flat mould used, Warm forging shaping dies, warm forging shaping mould and cold forging finishing mold,
Shown in Figure 2, the flat mould includes flat-die punch-pin and flat-die cavity plate, and the flat-die punch-pin includes first flat Mould upper mold 201, the second flat-die upper mold 202, the flat-die cavity plate include the first flat-die lower die 203, the second flat-die lower die 204,
The first flat-die upper mold 201 be cylinder punch-pin, the second flat-die upper mold 202 be cylinder punch-pin, described first The clamping of flat-die upper mold 201 is set in the second flat-die upper mold 202,
The first flat-die lower die 203 is solid cylinder, and the second flat-die lower die 204 is cylinder, and described first is flat Mould lower die 203 is plugged in the second flat-die lower die 204;
Shown in Figure 3, the warm forging shaping dies includes warm forging forming terrace die and warm forging female die for forming, the warm forging at Shape punch-pin includes the first warm forging forming upper mold 301, the second warm forging forming upper mold 302, third warm forging forming upper mold of coaxial arrangement 303 and the 4th warm forging shape upper mold 304, the warm forging female die for forming includes the first warm forging forming lower die 305 of coaxial arrangement, the Two warm forging forming lower dies 306, third warm forging forming lower die 307,
The first warm forging forming upper mold 301 is cylinder punch-pin, and diameter is equal in pinion mounting holes at the model of lower end Diameter, the first warm forging forming upper mold clamping are set in the second warm forging forming upper mold,
The second warm forging forming upper mold 302 is cylinder cavity plate, is equipped with tooth die, the tooth form ruler of tooth die at external port Very little is half-formed size, and pinion mounting holes mould is equipped at inner port, and the second warm forging forming upper mold clamping is set to third temperature It is swaged into shape upper mold,
Third warm forging forming upper mold 303 is cylinder, the second warm forging forming upper mold clamping be set to third warm forging at In shape upper mold, the third warm forging forming upper mold clamping is set in the 4th warm forging forming upper mold,
The 4th warm forging forming upper mold 304 is cylinder,
The first warm forging forming lower die 305 is solid cylinder, is equipped with protrusion part, the protrusion among end face thereon Diameter is divided to be equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative ground shape model, The first warm forging forming lower die is inserted in the second warm forging forming lower die,
The second warm forging forming lower die 306 is cylinder, and there are chamfering, the second warm forging forming in inner wall upper end endface Lower die is inserted in third warm forging forming lower die,
The third warm forging forming lower die 307 is cylinder;
Referring to fig. 4, the warm forging shaping mould includes warm forging shaping terrace die and warm forging correcting die, and the warm forging shaping is convex Mould includes the first warm forging shaping upper mold 401 of coaxial arrangement, in the second warm forging shaping, 402,403 and of third warm forging shaping upper mold 4th warm forging shaping upper mold 404, the warm forging correcting die include first the 405, second temperature of warm forging shaping lower die of coaxial arrangement Shaping lower die 406 and third warm forging shaping lower die 407 are forged,
The first warm forging shaping upper mold is cylinder punch-pin, and the diameter at the model of end is equal to pinion mounting holes internal diameter, The first warm forging shaping upper mold is inserted in the second warm forging shaping upper mold,
The second warm forging shaping upper mold is cylinder cavity plate, and model end is equipped with gear non-operative end mould, second temperature The clamping of shaping upper mold is forged to be set in third warm forging shaping upper mold,
The third warm forging shaping upper mold is cylinder, when model end and the second warm forging shaping upper mold model end work, two Person collectively forms gear non-operative end surface model, and the third warm forging shaping upper mold clamping is set in the 4th warm forging shaping upper mold,
The 4th warm forging shaping upper mold is cylinder, is moved synchronously during forging and stamping with third warm forging shaping upper mold, is protected Third warm forging shaping upper mold,
The first warm forging shaping lower die is solid cylinder, is equipped with the first protrusion part among end face thereon, protrudes part Diameter be equal to the straight bevel gear diameter of axle to be processed, first protrusion part periphery be additionally provided with the second protrusion part, second is convex Part is straight bevel gear inoperative ground shape model out,
The second warm forging shaping lower die is cylinder, and internal diameter is equal to the first warm forging shaping upper mold outer diameter, and the second warm forging is whole The size at the model end of shape lower die is identical as the theoretical size in working gear face to be processed, and the first warm forging shaping lower die is set to In the second warm forging shaping lower die,
The third warm forging shaping lower die is cylinder, and internal diameter is equal to the second warm forging shaping lower die outer diameter, second temperature Shaping lower die is forged to be set in third warm forging shaping lower die;
Referring to Fig. 5, the cold forging finishing mold includes cold forging finishing punch-pin and cold forging finishing cavity plate, and the cold forging finishing is convex Mould includes in the first cold forging finishing of coaxial arrangement, 501 and the second cold forging finishing upper mold 502, the cold forging finishing cavity plate include The first cold forging finishing lower die 503, the second cold forging finishing lower die 504 and the third cold forging finishing lower die 505 of coaxial arrangement,
The first cold forging finishing upper mold is cylinder punch-pin, is equipped with gear non-operative end mould at the model end of end,
The second cold forging finishing upper mold is cylinder, and the first cold forging finishing upper mold clamping is set in the second cold forging finishing It in mould, is moved synchronously during forging and stamping with the first cold forging finishing upper mold, protects the first cold forging finishing upper mold,
The first cold forging finishing lower die is cylinder cavity plate, and protrusion part, protrusion are equipped among the upper surface of model end Diameter is divided to be equal to the gear diameter of axle to be processed, model end upper surface periphery is additionally provided with remaining protrusion part, remaining described protrusion part For straight bevel gear inoperative ground shape model,
Second cold forging finishing lower die is cylinder, internal diameter of the internal diameter less than the first cold forging finishing lower die, second cold forging Finishing lower die outer diameter is equal with the first cold forging finishing outer diameter, and is equal to third cold forging die finish internal diameter,
The third cold forging finishing lower die is cylinder, and internal diameter and the first, second cold forging die finish outer diameter are equal, described first Cold forging finishing lower die is set to above the second cold forging finishing lower die, and the first, second cold forging die finish is set to third cold forging finishing In lower die.
The clamping being related in the present embodiment is it is preferable to use step clamping, and illustrate such as: the first warm forging shapes upper mold 301 Upper end be equipped with protrusion, the inside of corresponding second warm forging forming upper mold 302 is equipped in shape and the first warm forging forming upper mold 301 The recess that end convex shape matches;For example, the outer wall top of the second warm forging forming upper mold 302 is equipped with protrusion, third warm forging The upper inside wall of forming upper mold 303 is equipped with the recess that shape matches, and the two forms clamping.
In the present embodiment, the upper die holder includes cope plate 16 and the upper mold pressure block 17 that is co-axially located in cope plate.
In the present embodiment, the lower die holder includes big pressure block 1, lower die pressure block 2, floating template 26, compression ring 30, bullet Spring 3, floating pressure block 4, lower template 32, workbench backing plate 33, coaxially clamping is set in lower template 32 the big pressure block 1, institute Stating big pressure block is lower die pressure block and compression ring support section, is coaxially fixed below lower die pressure block and compression ring, limitation The two is to up and down motion, and the compression ring 30 is set on lower die pressure block 2, and the lower end of the compression ring 30 is circumferentially with platform Rank, for fixing big pressure block, the floating template is set to above compression ring, and the floating template and compression ring are connected by slide bar It connects, is arranged with spring on the slide bar, act on as accumulation of energy and buffering, by floating template energy storage, upper and lower mould during forging and stamping When separation, lower die is set back and is set, the floating pressure block is coaxially arranged with floating template, the outer diameter of the floating pressure block Equal to the internal diameter of floating template installation place, the outer diameter of floating pressure block is greater than the internal diameter of floating template and is less than floating template Outer diameter, the height of floating pressure block are less than the height of floating template, and lower die pressure block is the first flat-die lower die, the first warm forging forming The support section of lower die, the first warm forging shaping lower die and the first cold forging finishing lower die is limited in different forging processes and is corresponded to Lower die moves downward, and the spring is pressure rings accumulation of energy and buffer portion, is installed on the slide bar that compression ring is connected in floating template On, other lower dies are stored (except the first flat-die lower die, the first warm forging forming lower die, the first warm forging shaping lower die and the first cold forging Other lower dies of finishing lower die) conduction energy.
In the present embodiment, it is additionally provided with mold protecting device, the mold protecting device includes Upper Die-sleeve 15,23 and of lower die-sleeve Upper die plate 18, the fixed top with upper die holder of the upper die plate 18, the fixed lower section with upper die holder of the cope plate are described Lower die-sleeve 23 is set on the lower die seat, and the upper and lower die sleeve is cylinder, and in different process, the Upper Die-sleeve is coaxial It is fixed at the outermost of the corresponding punch-pin in same straight bevel gear set of molds, the lower die-sleeve is coaxially fixed at same The outermost of corresponding cavity plate in straight bevel gear set of molds.
In the present embodiment, the upper material returned pin 19, lower material returned pin 31 are the open circles among upper and lower molding pressure block Column, material returned pin have some scrap and block into upper and lower mould in warm forging and cold forging processes, which can be used to clear up useless The foreign matters such as bits.In the present embodiment, the small guide post 25 is cylinder director element, and guide sleeve 28 is set on small guide post 25, the element It is connected with floating template 26, it is ensured that floating template is moved in vertical direction, and through type forced filling oil cup 29 is arranged in floating template The upper end of small guide post is arranged in 26 side, gasket 27.
In the present embodiment, the guide sleeve 9 that Fig. 1 is additionally provided with guide post 6, is arranged guide post 6, small guide post 22 is connect with lower die-sleeve 23, general Logical straight pin A type 24 is for fixing lower die-sleeve 23 and floating template 26, and Upper Die-sleeve 15 is set in upper mold outermost, with cope plate Fixed, big nut 13, T-bolt 14 are the fixture nut that the present embodiment uses.

Claims (4)

1. a kind of big specification straight bevel gear finish forge molding machine, it is characterised in that: including upper die holder, lower die holder and be placed in Same straight bevel gear set of molds between upper die holder and lower die holder,
The same straight bevel gear set of molds includes respectively corresponding the flat mould used, warm forging in gear difference process Shaping dies, warm forging shaping mould and cold forging finishing mold,
The flat mould includes flat-die punch-pin and flat-die cavity plate, and the flat-die punch-pin includes the first flat-die upper mold, the second flat-die Upper mold, the flat-die cavity plate include the first flat-die lower die, the second flat-die lower die,
The first flat-die upper mold is cylinder punch-pin, and the second flat-die upper mold is cylinder punch-pin, the first flat-die upper mold card It is arranged in the second flat-die upper mold,
The first flat-die lower die is solid cylinder, and the second flat-die lower die is cylinder, and the first flat-die lower die plugs In the second flat-die lower die;
The warm forging shaping dies includes warm forging forming terrace die and warm forging female die for forming, and the warm forging forming terrace die includes coaxially setting The first warm forging forming upper mold, the second warm forging forming upper mold, third warm forging forming upper mold and the 4th warm forging forming upper mold set, it is described Warm forging female die for forming includes under the first warm forging forming lower die, the second warm forging forming lower die and third the warm forging forming of coaxial arrangement Mould,
The first warm forging forming upper mold is cylinder punch-pin, and diameter is equal to pinion mounting holes internal diameter at the model of lower end, described First warm forging shapes upper mold clamping and is set in the second warm forging forming upper mold,
The second warm forging forming upper mold is cylinder cavity plate, and tooth die is equipped at external port, and the tooth proportions of tooth die are half Compact dimensions are equipped with pinion mounting holes mould at inner port,
The third warm forging forming upper mold is cylinder, and the second warm forging forming upper mold clamping is set to third warm forging and shapes upper mold Interior, the third warm forging forming upper mold clamping is set in the 4th warm forging forming upper mold,
The 4th warm forging forming upper mold is cylinder,
The first warm forging forming lower die is solid cylinder, is equipped with protrusion part, the protrusion section diameter among end face thereon Equal to the corresponding model straight bevel gear diameter of axle, remaining protrusion is divided into straight bevel gear inoperative ground shape model, and described the One warm forging forming lower die is inserted in the second warm forging forming lower die,
The second warm forging forming lower die is cylinder, and there is chamfering in inner wall upper end endface, and the second warm forging forming lower die is inserted In third warm forging forming lower die,
The third warm forging forming lower die is cylinder;
The warm forging shaping mould includes warm forging shaping terrace die and warm forging correcting die, and the warm forging shaping terrace die includes coaxially setting The first warm forging shaping upper mold, the second warm forging shaping upper mold, third warm forging shaping upper mold and the 4th warm forging shaping upper mold set, it is described Warm forging correcting die includes under the first warm forging shaping lower die, the second warm forging shaping lower die and third warm forging shaping of coaxial arrangement Mould,
The first warm forging shaping upper mold is cylinder punch-pin, and the diameter at the model of end is equal to pinion mounting holes internal diameter, described First warm forging shaping upper mold is inserted in the second warm forging shaping upper mold,
The second warm forging shaping upper mold is cylinder cavity plate, and model end is equipped with gear non-operative end mould, and second warm forging is whole The clamping of shape upper mold is set in third warm forging shaping upper mold,
The third warm forging shaping upper mold is cylinder, and when model end and the second warm forging shaping upper mold model end work, the two is total With gear non-operative end surface model is constituted, the third warm forging shaping upper mold clamping is set in the 4th warm forging shaping upper mold,
The 4th warm forging shaping upper mold is cylinder, is moved synchronously during forging and stamping with third warm forging shaping upper mold, and third is protected Warm forging shaping upper mold,
The first warm forging shaping lower die is solid cylinder, is equipped with the first protrusion part among end face thereon, protrudes the straight of part Diameter is equal to the straight bevel gear diameter of axle to be processed, is additionally provided with the second protrusion part, the second protrusion in the periphery of the first protrusion part It is divided into straight bevel gear inoperative ground shape model,
The second warm forging shaping lower die is cylinder, and internal diameter is equal to the first warm forging shaping upper mold outer diameter, under the second warm forging shaping The size at the model end of mould is identical as the theoretical size in working gear face to be processed, and the first warm forging shaping lower die is set to described In second warm forging shaping lower die,
The third warm forging shaping lower die is cylinder, and internal diameter is equal to the second warm forging shaping lower die outer diameter, and second warm forging is whole Shape lower die is set in third warm forging shaping lower die;
The cold forging finishing mold includes cold forging finishing punch-pin and cold forging finishing cavity plate, and the cold forging finishing punch-pin includes coaxially setting The the first cold forging finishing upper mold and the second cold forging finishing upper mold set, the cold forging finishing cavity plate include the first cold forging of coaxial arrangement Finishing lower die, the second cold forging finishing lower die and third cold forging finishing lower die,
The first cold forging finishing upper mold is cylinder punch-pin, is equipped with gear non-operative end mould at the model end of end,
The second cold forging finishing upper mold is cylinder, and the first cold forging finishing upper mold clamping is set to the second cold forging finishing upper mold It is interior, it is moved synchronously during forging and stamping with the first cold forging finishing upper mold, protects the first cold forging finishing upper mold,
The first cold forging finishing lower die is cylinder cavity plate, and protrusion part is equipped among the upper surface of model end, and protrusion part is straight Diameter is equal to the gear diameter of axle to be processed, and model end upper surface periphery is additionally provided with remaining protrusion part, remaining described protrusion is divided into directly Bevel gear inoperative ground shape model,
Second cold forging finishing lower die is cylinder, internal diameter of the internal diameter less than the first cold forging finishing lower die, the second cold forging finishing Lower die outer diameter is equal with the first cold forging finishing outer diameter, and is equal to third cold forging die finish internal diameter,
The third cold forging finishing lower die is cylinder, and internal diameter and the first, second cold forging die finish outer diameter are equal, first cold forging Finishing lower die is set to above the second cold forging finishing lower die, and the first, second cold forging die finish is set to third cold forging finishing lower die It is interior.
2. big specification straight bevel gear finish forge molding machine according to claim 1, it is characterised in that: the upper die holder packet The upper mold pressure block for including cope plate and being co-axially located in cope plate.
3. big specification straight bevel gear finish forge molding machine according to claim 1, it is characterised in that: the lower die holder packet Big pressure block, lower die pressure block, floating template, compression ring, spring, floating pressure block, lower template, workbench backing plate are included, it is described Big pressure block, which is coaxially clamped, to be set in lower template, and the compression ring is set on lower die pressure block, and the floating template is set to pressure Above tight ring, the floating template is connect with compression ring by slide bar, and spring, the floating pressure block are arranged on the slide bar Coaxially it is arranged with floating template, the outer diameter of the floating pressure block is equal to the internal diameter of floating template installation place.
4. big specification straight bevel gear finish forge molding machine according to claim 1, it is characterised in that: be additionally provided with mold guarantor Protection unit, the mold protecting device include Upper Die-sleeve, lower die-sleeve and upper die plate, and the upper die plate is fixed with upper die holder Top, the fixed lower section with upper die holder of cope plate, the lower die-sleeve is fixed on the lower die seat, and the upper and lower die sleeve is cylinder, In different process, the Upper Die-sleeve is coaxially fixed at the corresponding punch-pin in same straight bevel gear set of molds Outermost, the lower die-sleeve are coaxially fixed at the outermost of the corresponding cavity plate in same straight bevel gear set of molds.
CN201820546563.4U 2018-04-17 2018-04-17 A kind of big specification straight bevel gear finish forge molding machine Active CN208513587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820546563.4U CN208513587U (en) 2018-04-17 2018-04-17 A kind of big specification straight bevel gear finish forge molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820546563.4U CN208513587U (en) 2018-04-17 2018-04-17 A kind of big specification straight bevel gear finish forge molding machine

Publications (1)

Publication Number Publication Date
CN208513587U true CN208513587U (en) 2019-02-19

Family

ID=65340995

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820546563.4U Active CN208513587U (en) 2018-04-17 2018-04-17 A kind of big specification straight bevel gear finish forge molding machine

Country Status (1)

Country Link
CN (1) CN208513587U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992652A (en) * 2020-08-17 2020-11-27 一汽解放汽车有限公司 Straight bevel gear closed forging die

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992652A (en) * 2020-08-17 2020-11-27 一汽解放汽车有限公司 Straight bevel gear closed forging die

Similar Documents

Publication Publication Date Title
CN101332488B (en) Cold-forging technique of gear shaft
CN102350615B (en) Shunt blocking forming method for star-shaped sleeve
CN102489960B (en) Method for manufacturing harmonic reducer of robot
CN102350622B (en) Production process of straight tooth gear of oil pump
CN103624502A (en) Cold-forging plastic molding technology of brake piston
CN103707017A (en) Automatically continuously variable transmission (CVT) V-shaped belt pulley axle finish-forging and plastic- molding process
CN103157758A (en) Precision forging plastic forming process for inner gear ring in planetary reducer
CN109366109A (en) Front of the car connecting bushing processing technology
CN107414009B (en) Waveform combustion chamber forging steel piston head heat, cold forging near-net-shape technique
CN103157759A (en) Cylindrical gear warm-cold combined precision forging plastic molding process
CN104858316A (en) Processing method of inner clamp rotation blocks in bending machine die special for special R-shaped sheet materials
CN105945519A (en) Cold forging forming technology of hollow pipe output shaft
CN101439387A (en) Spiral angle gear accurate hot-extrusion stamp forging technique and process
CN101545440B (en) Method for manufacturing swivel of actuating lever for motorcycle
CN208513587U (en) A kind of big specification straight bevel gear finish forge molding machine
CN208408424U (en) A kind of mold for big specification straight bevel gear finish forge molding machine
CN110102589B (en) Method and apparatus for machining gear
CN108607946A (en) A kind of big specification straight bevel gear study on precision forging technology
CN104148889A (en) Square plate shell blank forming method and matched forming dies thereof
CN103537595A (en) Novel technology for forging spline shaft of transmission shaft
CN107350752A (en) A kind of processing method of valve member
CN108311633A (en) A kind of big specification straight bevel gear multistep former
CN210614988U (en) Tooling for manufacturing belt pulley for forging motor
CN108637154A (en) A kind of mold for big specification straight bevel gear multistep former
CN203592100U (en) Primary forging die body of transmission shaft spline shaft horizontal forging die

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant